Footwear upper



FIG. 1 is a perspective view of a footwear upper showing my new design;

FIG. 2 is a first side elevational view thereof;

FIG. 3 is an opposite side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIGS. 1-7 represent portions of the footwear that form no part of the claimed design. The broken line which defines the bounds of the claimed design forms no part thereof. 

The ornamental design for a footwear upper, as shown and described. 